#17574F
Closest named color: Dark Blue Green (#005249). oklch(41.5% 0.064 183.1), rgb(23, 87, 79).
Aa
White text reads best on this color (8.35:1).
About this color
#17574F is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.064 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.022 away. White text reads best on it, at 8.35:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.51:1 |
| White text | 8.35:1 |
Values
| HEX | #17574F |
| RGB | rgb(23, 87, 79) |
| HSL | hsl(173, 58%, 22%) |
| OKLCH | oklch(41.5% 0.064 183.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #17574F | 8.35:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #17574F | 2.51:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #17574F text on white | 8.35:1 | AAA | Lc 88.6 | Fine for body text |
| #17574F text on black | 2.51:1 | Fails | Lc -13.6 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CBDEDA
oklch(88.5% 0.021 181.8)
-
Step 300
300
#A7C9C3
oklch(80.9% 0.037 183.5)
-
Step 400
400
#75ADA4
oklch(70.6% 0.06 183.4)
-
Step 500
500
#4E998E
oklch(63.2% 0.077 183.1)
-
Step 600
600
#2C8378
oklch(55.6% 0.083 183.4)
-
Step 700
700
#1D6F65
oklch(49.1% 0.078 183.2)
-
Step 800
800 (this color)
#17574F
oklch(41.5% 0.064 183.1)
-
Step 900
900
#1E4A44
oklch(37.6% 0.05 183.5)
-
Step 950
950
#132C28
oklch(27.2% 0.032 182.2)
#17574F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #53524F | 0.069 |
| Deuteranopia (no green cones) | #494B50 | 0.064 |
| Tritanopia (no blue cones) | #005954 | 0.011 |
| Achromatopsia (no color) | #4E4E4E | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17574F
#17574F
oklch(41.5% 0.064 183.1)
- #693C48
#693C48
oklch(41.5% 0.065 3.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #17574F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.022
- Deep Teal #00555A ΔE 0.023
- Dark Slate Gray #2F4F4F ΔE 0.031
- Dark Teal #014D4E ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.040
- Petrol #005F6A ΔE 0.044
- Spruce #0A5F38 ΔE 0.052
- Pine #2B5D34 ΔE 0.053
Use #17574F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.